Fisnik Jashari, Umeå University (IMAGE) Umea University Caption Doctoral student Fisnik Jashari at Umeå University in Sweden shows how ultrasound can identify patients at risk of stroke. Credit Per Melander Usage Restrictions This photo may only be used in the context of this press release. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.